Nintendo has announced that Pokémon X & Y has sold over 2 million units in the US and contributed to a 135% uptick in sales for the 3DS family of systems. The firm also said it was the fastest Pokémon in the region to hit 1 million units, and 1 in 5 3DS owners have purchased one of the titles. You can look over the infographic below. Nintendo announced back in October that Pokémon X & Y moved over 4 million units worldwide in two days and during October, the game landed at number 2 and 3 on the NPD charts.